Type-writing machine.



A. T. BROWN. TYPE WRITING MAOHINE. APPLIoATIoN FILED JUNE 1o, 1907.

Patented Sept. 13, 1910.

SHEETS-SHEET 1.

W/TNESSES:

A. T. BROWN.

TYPE WRITING MACHINE.

0. 1I.. 9 1 o0., 1 .Ul p e S d e t n Lw a D.. 7. 0 9 1. 0 1 E N U J D E L I F N 0 I T A o I L P P A ,6 8 9 n0 Ou 6 SHEETS-SHEET 2.

. INVENTOR. 2

ATTORNEY.

A. T. BROWN.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 10| 1907. Sept. 13,

6 BHEETS--SEEET 3.

H531 la 5| so 78 lo ,n www. 9 i, Y? l c) 5 8252 v 7b I' |sz1 87 W/T/VESSES.'

A. T. BROWN. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 10, 1807. 969,836, Patented Sept. 13, 1910.

B SHEETS-SHEET 4.

WTNESSES.'

INVENTOR. f5 m Meg/M,

A Troie/v5 Y.

A. T. BROWN.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 10, 1907.

'Patented Sept. 13, 1910. Fl G. 6

6 SHEETS-SHEET 5.

@M J NVENTOR.

ATTORNEY.

A. T. BROWN.

TYPE WRITING MACHINE.

APPLICATION IILBD JUNI; 1o. 1907..

969,836. Patented Sept. 13, 1910.

, parts being broken away and parts omitte and the top plate and the parts above 1t be- UNITED STATES PATENT OFFICE.

ALEXANDER T. BROWN, OF SYRACIUSE, NEW YORK.

TYPE-WRITING MACHINE.

Speoioation of Letters latent. Patented Sept. 13, 1910.

Application led June 1D, 1907. Serial No. 378,271;

of: construction and combinations and ai"-y rangements of parts all of which will be fully set forth herein and particularly pointed out in theclaims.

' In the accompanying drawings, Figure 1 is a frontelevation of. the upper partof a typewritin'g machine having my invention embodied therein, certain parts being shown in section and other partsoniitted or'broken away. Fig. `2 is a right-hand side elevation of the rear part of said typewriting machine ing shown in vertical section on a plane just inside the right hand carriage rail standard. In this view the, right hand `margin stop appears in section.A Fig. 3 is a view similar to Fig. 2 with the section ofthe topuplate taken on substantially the same plane as in Fig. 2 but with said section extended to the lower part of the framework `so thatl the right-hand vside late ofthe frame is sectioned away to display more of the mechanism of the machine. In this Aview the type bai" and sub-lever 'segments appear in central vertical section and the right-hand margir'istop in end elevation and Asome parts shown 1n Fig. 2 are.omitted.g;Fig. Llis al rear elevation of the upper part'of the machine on a reduced. scale'..^.,.Fig. 5 isy a front to rear vertical sectio'nyof [the upper part of the typewriting machineaiparts being omitted., Fig. 6 is a rear'elevation of the upper.y left-hand part of the'imachine, parts being.' brokenvv away and l'parts shown in section.;

Fig. 7 is a fraginentarytopfview, partly in section, of a portion' of the stop mechanism.. Fig. 8 is a fragmentary front elevation,`

partly in vert-ical section, of part of the stop mechanism. Fig. 9 is a top view of. the same, partly in section. Fig. 10 i's ato view of the same with partsun section anld parts broken away. Fig. 11 isa fragmentary rear elevation showing a stop and a5 notched lug with which said stop coperates.

vMost of the features of my invention are applicable to typewriting machines generally but'I have here show-n thema plied to a front-strike typewriter, which, Ihowever, has been illustrated in the drawings only so far as is necessary to make clear the man- 'ner'in which my invention is applied to it. vThe main frame of this machine comprises side plates 1 which. are connected to ether at their rear ends by a'back plate 2.

side platesl, support a top plate 4 from the rear l-part of which there rise a left-hand l standard 5I and a right-hand standard 6, which standards support a stationary car-y riage rail 7 at an inclination upward and towardl the back of the 4machine as shown in the drawings. The rail 7 has in its lower front and upper rear edges grooves which serve as. ball races for anti-friction balls.8 which coperate with carriage rails 9 to support the earriagewith freedom to move across the machine in the usual lmanner. The rails orner-- ,posts 3 rising from or forming parts ofsaid 9 are secured at their ends to carriage end pieces 10 each formed at its forward end with a notch in which rests the shaft 11 of a roller platenv 12. ,Y

The mechanism for effecting a step-bystep feed of the carriage comprises a rackbar 13 secured to the under sideofthe forward carriage rail 9 and engaged by two gear wheels 14 and 15 which extend ui through a suitable slot in the top plate unil which are mounted on a shaft 16 (Fig. 1) ,y that is jour-naled in frame plates 17 and 18 (Fig. 2) forming p'arts of a framework that depends from the top plate to which said framework is secured. The gear 14 is connected in any suitable way with a driving sprin coiled within a spring drum 1.9 ,(Fig. 1). The gear Wheel 15 meshes with'arpinion 21 (Fig. 2) mounted on a shaft 22 that is journaled rin the frame lplates 1.7 and `18.

The ,escapement mechanism is 'not shown hereinfbiit 1t may comprise an escapement wheel finounted on orv geared to he shaft 22 and controlled by feed dogs which in" turn may he controlled by the keys in `anyfsuitable manner. The pinion 21 is so mounted on the shaft 22 that itis held against end-*lib wise motion onsaid shafthut may turn on the shaft. The rear face'of the pinion is formed with ratchet clutch teeth which engage like teeth on a clutchmember 23 that is slidably mountedon the shaft 2 2 but is held against -turning relatively to said shaft by a pin and slotvv connection with a collar or flange v25 integral with or rigidly mounted on. the shaft as shown in Fig. 2. The clutch member 23 is normally pressed toward the i pinion 21 by a spring 22. In orden to move said 'clutch member toward the rear of the sub-levers V48fp1ays in oneof said slots.

upper ends on screws machine to release the carriage from its step-by -step feed mechanism, the clutch member 23 1s .formed with a peripheral groove or slot 26 (Fig. 2) into which there projects the end of an arm 27 projecting from a rocking member 28 that stands verticallyand is pivoted at its upper and lower ends in brackets'30 that project toward the front ef the machine from the frame plate 18. The member 28 has an arm 31 that pro* jects upward through a suitable opening in the top plate and that has 'onpits upper end a roller 32'which stands behind a yoke b'ar 33 that ismountedat itsends on the lower ends of arms 35 which are ivoted at their 36 t readed into a part of the carriage. The arms 35 are in eect arms of bell crank levers having forwardly extending arms 37 on the forward ends of. which are release keys 38. The motion lof the arms 37 about their pivots is limited in both directions by a pin or screw V40 '(Fig. 2) that is secured to one of the end pieces 10 of the carria e and projects through a slot`41 in one o said arms. The construction. issuch that if, one of the release keys 38 be' depressed the yoke bar y33 will be moved .toward the back of the machine, carrying with it the arm 31 and-rocking the member 28. about its pivot. 4In this motion the arm 27 will move .the clutch member .23 toward the back of thev machine, thus disengaging the clutch and leaving the pinion 21 free toturn without turning the shaft '22 and the escapement wheel connected therewith. p v

The type action of this machine comprises frontlstrlke type bars 42 and 43 mounted by ball bearings 4on (grooved segmentsl'and 46 respectively an having mounted on their free ends types adapted to strike against the front face o fthe platen 12. ,Each of they typle bars has pivoted to the heel thereof a ra ially extending link 47 the outer end '557 of which is pivoted to one of a series of sub-levers 48. The sub-levers 48 are'pi'v pted on a' pivot wire 50 laid in ajgroove 1n` a sub-lever. segment 51 which is -mounted 4concentrically with the typel bar segments 45` and 46. :The segment 51 has its rearfedlge c .t e

slotted as4 shown in Fig. 3 and each Said sub-levers'are connected by links 52 with'key levers in the keynboard of the ina` chine, 'which key levers.are-not,` shown butpreferably rigid-lylconnected with a rock whichy may, be Tof any suitable' construction.

Each of the sub-levers 48 has a downwardly extendmg arm 53 to which is connected one 4end of a Ireturning spring 54, the other end' of which is connected to a hook on a plate 56 secured to the forward edge of the segment 51 by screws 57. vThe type ac tion just described isl not of my invention but is the None of the invention of John H. Barr. features of the machine so far described is claimed in the present application but some of them are claimed in other applications of mine co-pending herewith.

A segmental universal bar 58 stands be-Y hind the depending arms 53 of the sublevers in position to bemoved toward' the rear ofthe machine by any of said snb-levers when the latter Ais operated by ,the corresponding key acting throughv the link This universal bar is here shown/as made of angled metal, its upstanding flange being behind the arms 53. In order to cause said universal bar-to have a substantially parallel motion it has projecting therefrom near either end an arm 60 which is pivoted at 61 to the *upper end of an arm 62v that projects upward from a rock-shaft 63 pivoted at its ends to the side plates 1.

Near its middle said universal bar has ,pro-

jecting therefrom toward the rear of the machine an arm 65 which is pivoted at 66 to an -arm 67 rising from a -rockvshaft 68 which is also ,pivotedfat its ends to the side plates l. The shaft '63 has an ar'm-` 70 projecting therefrom toward the rear ofthe machine and thel shaft 68 yhas an arm, 71 also projecting from it toward the rear of the machine and these arms are connected.'

by a link 72 so as to. causethe two rock shafts to maintain a fixed/relation with each other. It will thus be'see'n that the universal bar is supported at three points.,` all of which are constrained to move in unison l so that said universal bar-basa parallel motion. The peculiar mounting of this universal bar is not claimed herein but is claimed in another application of mine copending herewith. Said universal bar -is held'in its normal position by a spring 73 connected at one end to the arm 71 and at its opposite end to the fixed framework the machine.

The margin stops are mounted' on al stop bar 75 which in turnl is mounted on the car# riage in a novel manner. vSaidjstop bar"V forms part of aivoted frame whichfcom-j at hang down` from' the" prisesarms 76` t carriage behind-,the machine. Each" of `sai arms at its f'upp'r end? is mounted on and\i s shaft 77 whichfp'assst "ugh suitable opens ings in the-end piecesfO-offthe carriage, thev l arms 76 being mounted thereon just inside said' endf-p1ec'e's. It-fisjintof'this' rod or shaft "77 that ,the 'pivot `screws-136'ofthe carriage 1:

release yoke frame are threaded. One on?? lf3 both of the arms 76 is provided at its hub with a pointed projection 78 which is engaged by aiiat spriiig,80 secured to the ii per carriage rail 9 by screws 81. As will E seenby reference to Fig. 3 the tension of this spring normally tends to hold the arms 76 in their normal 'depending position in which position they are arrested by lugs 82 formed thereon and engaging the' rear face of the upper carriage rail 9. The construction is such that the marginstop frame may be swung up to an upright osition or on over to a nearl ing of the parts except that due to friction..

As shown in the present instance the arms 76 are extended beyond the margin stop bar said stop 88. The 'stop bar 75 is formed and have mounted in theirlower ends a tabulator stop bar 83 on 4which tabulatol stops 85 operation with other tabulator stop devices which, however, are not shown in the resent case. As here shown the stop bar 5 is formed of a strip -of lat metal having a rib formed longitudinally therein for the sake of-stiness, and said bar is rigidly secured to the arms 76`byrivets.

There are two margin stopsas usual, one

for arresting the carriage when itis moving toward the left in letter space direction, and the other for arresting the carriage when .it ismoved toward the right to begin a new line. Forzconvenience in distinguishing between these twostops I shall hereinafter refer to the latter as the margin stop and the ,former as the line lock stop, but in vthejclaims I do notwish to be understood as limiting myself.. to one of these stops as distinguished from the 'et er, except. Where such limitation is lain yexpre'sseld. In

other words, in the c aims the words mar-V 'n stopf are intended to be broad enough to cover either vof these stops. The margin stop comprises a stop piece 86 and the line lock stop a stop piece, 87.

`Each of these stop pieces is formed pf a.. piece of sheet metal thati'lies against the forward 'face of the stop bar 75 and the ent back beneath Figf at I along its upper 'edge with teeth 90 spaced av letterl space'distance apxart and a latch 91 is pivotedfat ,92 to-eac ofthe4 stop pieces .86 and 87 and is adapted to engage the spaces between the teeth 90 to'retainA the stop piecesiii any in each instanceto an ear 93 risingv from the sto piece'and 4each of the latches; 91 is forme fwit-h a part95 which extends down horizonta position las 'shown by dotted ines in Fig. 5. It will'be (Fig. 4) may be mounted for co-.

`at' the point mar 4 position.V to which they' 1- may be adjusted. "Thepivot 92 is secured.l

. oth er.

behind the stop bar- 75 as shown in' Fig. 2. i

This part95 ofthe latch and the-upturned part.88 of the stop piece prevent said stop piece 'from becoming displaced from the ,stop bar but the stopV piece is loose enou h t0 e a slid along thev r lon itudinally. s shown in the present case, t e pivot 92- conlsists of a shouldered wand headed screw, threaded into the ear 93. .By removing this .'screw, the latch 91 A,may be removed, and

the part 95fthereof no longer preventing,

the ystop piece may be removed-from the bar.

Eachof the stop pieces is formed' with twov 4ears 96 which are bent out over'thetop of.

the stop bar 75 and serve as guides for the 80 stop ieces. Each of the latches 91 isextende beyond its y piece 97 with a roug 'ened upper surface or the enga ement of the ngerand e spring 98,'seate ina lhole in theliiiger piece 97, is compressed between this arm 97 and one of the ears '96, said spring serving to retain the latch in engagement with the 'stop' bar.

Either of the stop pieces may be ad]us'ted at any time by Vressing against the arm 97 of the latch an moving the stop sure, when the spring 98 will cause the latch to engage the stop bar and retain the stolp in its ad usted position.

he part o the margin stop piece 86 that contacts with the stationary stop to arrest ivot to lform a iin er 4 l iece to `the desired position and releasingt e presthe carriage when the latter is drawn toward the right, consists of a lug 100 that is struck out from the sheet metal of the stop piece as shown in Figs. 1 and 5. yThis lug or stop is adapted to strike against a stationary stop 101 which is constructed and mounted in a manner which will. now be described. This stop, as best shown in Figs.

l7,'9 andlO, consists of the free end ofan arm or lever that is pivoted in a longitudinal slot formed in a. stop carrier or rod 102 which isI loosely mounted at its ends in ,the

standards 5 and.- "The stop arm or #lever 101 is pivoted on a in 103 that :passes through the rod 102 an said lever normally stands in al substantially. horizontal position and-is adapted to swing about Ithe pivot 103 -in a horizontal plane.- .Said lever comprises" a. part 104'which ,lies infront of the rod 102 and which has'aii' extension or lever arm pressed a spring 106'which normally presses the arm 1 05 toward the front of the machine and the`arm'101 towardthe rear of t-he inachine, this ymotion being limited by the engagement of the.

point l107 is formed by cutting two segmental slots108 and'll slots not quite meeting and the pivot 103 being ingone of `said slots and the arm 101 projecting through Ithei rod through the -105'b'etweenwhich'and the rod 102 is comart 104 with the rod 102 ed in Fig. 9, 107. `This in the bar 102, said l The rod 102 has its left-hand'end projecting into a hole through the vstandard 5; as shown in Fig. 8, Lthelleft-hand end of the hole being of greater` diameter than the right-hand end. A 'disk 111 isloosely seated in the larger part of said hole, and a spring 112 is compressed between said disk and a screw plug' 113Which is threaded vinto the outer endof'thehole and whichpresses said tance tothe left againstthe tension of the spring 112. yThen the carriage is drawn to the rightthestop lug 100 engages the lefthand side of the arm 101 which arrests the motion of the carriage in that direction. The 'stopy 101 rests in a notchformed in the upper edge of a lug 114 rising from the top plate. Said notch is a litt-le vwider than the stop 101 so as to give said stop and the rod 102 freedom to move a letter-space distance transversely of the machine, the stop being normally held by the spring 112 at the righthand side of the notch. The line lock stop piece 87 has two lugs 115and 116 struck out from' itsface.; as shown in'Fig. 1. The lug 115 is made at an inclination so that as the carriage moves to the left7 said lug passing under the arm 101, cams said arm upward,

turning the rod 102 in its bearing and briuging the parts to the position shown in dotted lines in Fig. 3 until the lug '11,5 passes from under the arm 101 when said arm is permitted to drop,'thus ringing the 'bell' 117 by meansv which will now be described. Said bell is secured to the inner face of the' righthand rear post 3 by a screw. or other suitable means. A clapper or hammerv 118 is mounti ed on the free end of an arm 120 which, as

showny in the present instance,` consists of a vprolongation of a sti' coiled spring 121 coiled about a headed screw 122 that is threaded into vthe post 3. The other end of the spring 121 extends upward forming an arm 123 which extends into a slot or opening 125 in the top plate Lf Into this same' opening there k projectsgfron'i the rod 102, -a-v depending arm 126, the end otvs'fhichy `contactsgwith'theend of the arm 123. "The construction is such that when@` therod 102 -is rock'e'd fby thel inclined 'luglllf the arm j-126 moves the arm 123 to'viiar'dithe y'backof thev machine, thus ,raising h and when yt-he :armi 101' mal position as far as rotation is concerned, although other means may be Aprovided for this purpose if desired.

The carriage in its motion toward the left is arrested and the line lock is operated by the lug or stop 116 engaging tlie arm 101 y y in the manner shown in Fig. 9. The relaf "tive positions of the lug 116 when it en-il gages the arm 101 and the pivot 103 of said arm, are such that unless some provision was made to prevent it, the lug instead of being arrested by thearm 101,` might simply turn said arm about its pivot, moving the free end Y of the arm toward the front'of the machine out of the path of the lug. To prevent this the right-hand edge of the free end of the 'arm 101 is formed with a notch 127` (Fig.

10) with which thelug 116 engages so that -such disengagement of the arm 101 is.pre.

vented'. When in the letter space movementl of the carriage the lug 116 engages the arm 101; it moves said arm and the rod 102 a short ydistance to the left which has vthe effectof locking the universal bar 58 by the following means: The arm 70 -connected withl said universal barbas pivoted to its free endl a link or bar 128 that extends upward there` from and/is formed near its upper end with an elongated slot 13G-through which passes a headed screw 131 so that said screwholds Ithe upper' end of the bar against displacement and guidesit in its down and up ino-1' tion when the universal bar is operated by' the keys. At its upper end the bar 128 has projecting therefrom toward the `rear of the machine a short arm 132 which is adapted to be engaged by the hook end 133 of an arm 135 that depends from the rod 102 through a suitable opening 136 (Fig. .8.)

of the top plate. The arm 135 and hook 133 normally stand in the positions shown in '-Fig. 8,. the hook a vlittle to thel right of and out of the path of the arm 132; but when the rod 102 is movedftoward the lett by the lug 116 as shown in Fig. 9, the hook 133 passes under the arm 132 and locks said arm and the link 128 against motion downward,`

thus locking the universal bar 58 and pre- 'fventinga fullv depression of any character key. The armv 135 is not rigidly mounted onthe rod 102 but, as shown in Fig.v8l, is

seated in a slot 137 `in which it is pivoted `Said arm is provided lwith ony a pin. 138. an arm or lug140 between which ,and the bottom of a suitable hole inV which it is seated, there is compressed a coiled spring M13/the tension of which tends to move the arm 135 vtowardfthe left. The motion of.' said yarm toward the left about the pivot .138 is limited by an arm 142 contacting with the bottom of the slot 137 Thel conf struction is such that in case the link 128 'happens to be in its lower position at the time when the rod`f`102 is rmoved toward the left the end ofl the hook 133 wil1.en.

' rocking motion of thea'od 102;

4 through an 1 vope'nin gage the arm 132; but this will not prevent the motion `of the rod 102 but will merely rock the arm 135 about its pivot against the tension ofhthe spring 141. As soon as the link 128 returns to its upper position the hook the arm 132 and lock the parts against further operation. As shown in the present instance, it is the arm 135, contacting with the walls of the opening 136, that limits the though it will, o course, be understood that any other suitable means may be provided for this purpose.

I have provided -in the keyboard of the machine a line lock release key 143 (Fig. 3) and connections whereby` when said key is depressed the arm 101 is moved out of the path of the line lock stop lug 116 so that the carriage may be moved beyond the position determined by the stop for writing a few additional letters at the end .of a line. The key 143 is mounted on the upper end of a stem 144, the lower end of which is pivoted at 145 to'an arm146 projecting toward the right from a rock shaft 147 that extends fore and aft of the machine, being j ournaled at its rear end in the back plate 2 and at its forward end in a front-plate 148. Near its rear end the rock shaft 147 has extending toward the left therefrom an arm 150 to which is pivoted the lower end of a push rod or link 151, the upper part of which is bent toward the right as shown in Fig. 1 and the upper end of which projects vertically in the top plate 4 in the position shown 1n Figs. 1 and 3, a little back of the rod 102. Said rod 102 has projecting therefrom toward the back of the machine an arm 152 which, as\shown in the present instance, is made of the same piece of metal asA the arm 126 of the bell ringer. When the parts are in their normal position the arm 152 stands a little above and a little' to the right of the upper end of the ush rod 151; but when the rod 102 has een moved toward the left by the lug 116, the

'arm 152 moves directly over the upper end of the rodv151. It', now, the key 143 be depressed, the push rod 151 will be elevated `and. the rod 102 will be tilted, bringing' the parts connected therewith to the4 positions shown in dotted lines in Fig. 3, with the arm 101 above and out of the path of the lug 116 and the hook end 133 of the arm 135 out from under the arm 132 of the link 128. The rod 102 being thus freed from the lug 116, is moved toward the right by its spring 112, thus moving the arm V101 to the right of the lug 116 and moving the arm 152 off of the end of the push rod 151. The

rod 102 then rocks back to .its normal posi-4 tion show-n in full lines inv Fig. 3. The construction is such that the release key 143 may be struck and allowed to return to nor- 133 will snap in underA lIt will be noted that the ,sto

as a margin release. The part 104 of the arm 101 is formed `with a lug or projection' 153 behind which rests one end of a small lever 155 which is pivoted in the slot 110 on a pin 156 as shown in Figs. 6 and 7. The

other end of the lever 155 normally stands out in front of the rod 102 and just back of a vertically disposed part of the arm 31 of the carria e release device. The parts are4 shown in 1ig. 7 in their normal positions by full lines and in the positionswhich they assume when the carriage release key is depressed by dotted lines. The construction 1s such that when the carriage release key is depressed and the arm 31 is moved toward the rear of the machine, the lever 155 1s rocked on its ivot, thus withdrawing the arm 101 towar the front of the machine and out of the paths of the stop lugs. Said stop lugs are beveled on their reverse faces, so that, if the carriage has been drawn toward the right into the margin, or toward the left beyond the line loc ring position, when, in returning, one of the stop lugs en. counters the arm 101, the latter is cammed toward the front of the machine about its pivot 103, and the movement of the carriage is not interfered with. Moreover, any ofthe stops may be released by swinging the stop frame toward the rear of the machine about its pivots, and the entire carriage stop, bell ringer and line lock mechanism may be thrown out of operation in; this way 1f desired.

In operation the carriage stop frame carrying the two margin stops and tabulator stops normally hangs in its depending position in which said stops are in operative position; but when it is desired to 1nspect the stops or to adjust them or to gain access to them for any yother reason, said frame is swung up to a substantially vertical position or toward the front of the machine as indicated by dotted lilies in Fig. 5 where the parts are more readily accessible than when in their normal position. arm 101 is substantially in the middle o Ithe machine so that the graduations on the stop bar correspond substantially with, those on the regular carriage scale (not shown). The construction is such that the paper may .be

'placed in the machine and the stop frame may be swung up to its accessible position and the stops may then be adjusted along 4the stop bar bydirect referei-icer to tne'paper itself without the necessity, ljor'referring to any scale'. The margin stopfpieces are of v Such length that it is necessary, in order to setsaid stops by direct reference to the paper, to have some particular part ofsaid 'stop-piece to serveas an index by which to set the stops. As shown in the present in-v stance, the toothed ends ofthe latches 91 given serve this purpose; that-is to say, if, when the frame is swung forward, the tooth of the latchj91-be set to correspond with. a oint on the paper, then when the frame 1s swung back toits normal position,

the margin stop will be set to arrest thel i carriage with'said given point of the Vpapeil at the printing point. I have, however, provided graduations on the rear face ofthe y stop bar'75 and it will beobserved that the numerals of these graduations are'inverted when the lstop frame is in its normal posi.

-tion so that said numerals are right side up whenthe stop frame is moved to its I more accessibleposition.

In anotherapplication Serial No. 377,082, filed June'3,g1907, Ihaveshow'n and described a tabnlator having its column stop bar .mounted similarly to the column stop bar 83 shpwn in `the present case and this construction of tabulator'stop bar isclai'med in said pending application. It will be per .ceived that the column stop bar is also swung .up to anaccessible position 'at the same time that the marginstop bar shown lin the present case is vso swung up and in the pending'a vplication referred to I have claimed thisv eature more broadlythan in the present case, the claims of said pendl ing application being broad enough to read not only `on the -tabul'ator stop bar shown in 'the' present 'easebut also on the margin st op mechanism shown herein. 'Thevclainis directed to this feature in the presentcase i are limited to the margin stops and tothe combination-in which the margin stops and tabulator stops are mounted on the same frame. I o

What I- claim as new and desire to secure i by Letters Patent,`is:-

1. In a typewritingmachine, the combination with a carriage andA printing mechanism, of a line-lock stop carried bythe car-v riage; a coperating stop; a movablecarrier for saidcoperating stop, said stop and its carrier being moved'by said-line-lock stop; means whereby suchmotion by said carrier locks said printing mechanism; and means;forfaiford ing -a motion 4vof saidcoperating stop with relation to 1its carrier into and out of the path of's'aid line-lool; stop on the carriage. A

2. In a typewriting machine, thecombination with a carriage and. printing mechanism, of'a line-lock stop carried by said carriage; a cooperating stop; a movable' car'- rior on which said coperating stop is pivotally mounted, said cooperating stop andv its carrier being'imoved together'bysaid line-lock stop on 'thel carriage; and means A for turning said cooperating stop .on its pivot into and out' of the path of said linelock stop.

tion with a carriage and printing-mechanism, of one or more margin stops on said carriage; a cooperating stop; a'm'ovable car-v rierA on which said coperating stop is mov- "7o e 3. In a typewriting machine, the combmaably'mounted; a levermounted on saidcar- Vrier and engaging said v'cooperating stop;- anda'carriage release device' operative oriA said lever to move said-cooperating stop .outof the path of said margin stop or stops.

4. In a typewriting machine, the combination with acarriage, carriage feeding devices and printing mechanism, of one or more margm stops carried by said carriage; a coperating stop ;I a movable carrier on which said cooperating vstop is movably mounted; a carriage release device; and

, means whereby said' carriage release device for said margin stop or stops movablewith relationto the carriage to bring saidmargin stop or stops into or ont of positionA to en- [gage said cooperating stop.'

6. In atypewritingmachine, the combination of a carriage, a margin stopcarried by said carriage, a coperatmg stop, a carrier on which said cooperating stop is pivotally mounted, and means for turning said -co- .operating stop about its pivot' to withdraw v.

it from the pathof said margin stop.

7. In a typewriting machine, the combina tion of a -carriage,`a carriage release device, 'a margin stop carried by sald carr1age,1a co.

operating stop, a carrier on which said cooperating stop is pivotally mounted,` and l means whereby said carriage releaseA device `turnssaid coperating stop about its pivot. to Withdraw it from the path of said margin stop. i v

8. In a typewri'ting machine, the combina-V tion of a carriage, a margin stop carried by sai-d carriage, a cooperating stop, a movably mounted. carrier for said coperating stop, said coperating stop being `movable margin stop to pass it freely in one dinec-4 ,.fwith relation to said carrier to allow said tion, and means for moving said carrier` to movesaid cooperating stop out of the path of said margin st op.

9. In atypewrlting machine, the c onibition of a carriage, a margin stop carried by4 said carriage, a cooperating stop, a pivoted carrier on which said coperating stop is movably mounted, means for moving said coperating stop relatively to its carrier to withdraw it from the path of said margin stop, and means for rocking said carrier to move said coperating stop out of the path of said margin sto 10. In a typewrlting machine, the combination of a carriage, a stop bar mounted on said carriage, a margin stop and a line lock stop adjustably mounted on said bar, a single stop cooperating with said margin and line lock stop to arrest the carriage, a carrier. on which said single stop is mount. ed, a line .lock device operated by an endwise movement of said carrier, a key, and means operated by said key for tilting said carrier to move said single stop out of the path of said line lock stop.

11. In a typewriting machine, .the combination 'of a carriage, a carriage stop carried by said carriage, a coperating stop normally in the path of the carriage and stop ada ted to be moved a limited distance by sai` carriage stop, and means o rative only when said coperating stop as been so. moved for moving one of said stops out of the way of the other.

12. In al typewriting machine, the combination of a carriage, two stops which come` into contact at a predetermined point in t-he travel of said carriage, one of said stops adapted to be moved by the other, and a key and connections, normall disconnected, but arranged to be connecte up when said stop has been so moved, for moving one of said stops out of the way of the other.

13. In a typwriting machine, the combination of a carriage, two stops which come into'contact at a predetermined oint in the travel of said carriage, one -o said stops adapted to be moved by the other, a line lock device operated by such motion of said stop, and means operative only when said stop has been so moved, for movin one of said stops out of the way of the ot er. t

14. In a typewriting machine, the combination of a carriage, a stop mounted on said carriage, a coperating stop, atiltable carrier for said co eratlngsto said carrier being movable endwise by sai carriage stop, a'key, a part operated by said key, and an arm on said carrier normally out of the path of said key o erated dpart but in position to be operate by sai part to tilt the carrier when said carrier is moved .endwise by said carriage stop.

15. In a typewriting machine, the combination with a carriage and printing fdevices, of a carriage stop mounted on the stationary frame of the machine and movable in three'directions, an alarm, means on the carriage for moving said stop in one direction lqtohsgnndsaid alarm, a line-lock stop on the y'margin stops adjustably mounted thereon,

the pivotal mounting of said frame being of such a character that said frame can be swung from its normal" position to a more accessible position to give access to said stop o r stops, and a coperating stop mounted 1n the framework of the machine beneath said carriage and normally in the path of said marginstop or stops.

17. In a typewriting machine having a top plate, the'combination of a carriage, a stop for said carriage mounted on the frame- /work of the machine between said carriage and said top plate, a frame depending from said carria e and having one or rmore margin stops a justably mounted thereon for cooperation with the first mentioned stop, said frame bein movably mounted so that it may be move to brin said margin stop or stops to a more accessl le position.

18. In a typewriting machine,- the combination with a carriage, of a frame movably mounted on said carriage and normally occupying a relatively inaccessible position, margin stops and tabulator stops mounted on said frame, and supporting means for saidframe arranged to permit of said`frame being moved to an abnormal position' to give access to said stops.

19. In a typewriting machine, the combination with a carriage, of a' frame mounted on said carriage, one or more margin stops and one or more tabulator stops mounted on said frame, and a pivotal mountin for said frame arranged to allow said rame to be swung from its normal position to a position more accessible from the front of the machine for the purpose of adjusting said stops.

20. In a typewriting machine, the combination with a carriage, of a frame pivoted to and depending from the rear part of said carriage, one or more margin stops and one or more tabulator stops mounted on said frame, said frame being capable of'turning on its pivots toa position above the body of the carriage to ivel access to said stops, and a stop mounted in front -of the normal position of said Jframe and cooperating with said margin stop. or stops.

21. In a typewriting machine, the combination with a carriage, of Aa frame pivotally mounted on said carriage and comprising tWo arms and two cross bars, oneor 'more'v margin stops mounted on one of said cross bars and one or more tabulator stops mounted on the Aother of said cross'bars. y

22. In a typewrltmg machine, thecombination of a papercarriage, a marglmstop adjustably mountedv on said carriage, and

means for' alfording a relative motion between said marginl stop, and the vpaper in the machine to bring said' paper and said margin stop'into juxtaposition so that' the' lmargin stop maybe adjusted by direct reference .to the papelgvthe construction and arrangement being Such that when a certainr'part of the margin stop 1S set to correspond to a given point on the paper said the carriage with said/.given point `at. the printing point.

-n'larginstop will be in position to .arrest- Signed at Syracuse, in the county of 20 Onondaga, and State of New York, this 29 day of May A. D. 1907.

ALEXANDER T. BROVN.- Vitnesses vCHARLES E. TOMLINsoN, JOHN A. PRoss. 4 

